SQL EXPRESS DATABASE WON'T UPDATE, HELP!!!!!

Hi my Sql express database, won't update...

I made sure that i followed all the instructions that come with the msdn help files, and i dragged the data table, from the data source window, in visual basic express, and it generates everything for me.

but still when i click the generated save button, and there are no errors, in the code, and when the save button is clicked, houreglass displays so i know that it is doing something, yet when i close the app, and load it again, the information i created is not there..

could somebody please help me

by the way, i cannot give out any source code, as i am working on a sensitive project.